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powerpc: Fix SMP issues with ppc64le ABIv2

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There is no need to put a function descriptor in
__secondary_hold_spinloop. Use ppc_function_entry to get the
instruction address and put it in __secondary_hold_spinloop instead.

Also fix an issue where we assumed cur_cpu_spec held a function
descriptor.

Signed-off-by: Anton Blanchard <anton@samba.org>
This commit is contained in:
Anton Blanchard
2014-03-11 11:54:06 +11:00
parent d51959d70f
commit 2751b628c9
7 changed files with 22 additions and 19 deletions
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5
arch/powerpc/platforms/cell/smp.c
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@@ -40,6 +40,7 @@
#include <asm/firmware.h>
#include <asm/rtas.h>
#include <asm/cputhreads.h>
#include <asm/code-patching.h>
#include "interrupt.h"
#include <asm/udbg.h>
@@ -70,8 +71,8 @@ static cpumask_t of_spin_map;
static inline int smp_startup_cpu(unsigned int lcpu)
{
int status;
unsigned long start_here = __pa((u32)*((unsigned long *)
generic_secondary_smp_init));
unsigned long start_here =
__pa(ppc_function_entry(generic_secondary_smp_init));
unsigned int pcpu;
int start_cpu;